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The diagram below represents the nitrogen cycle.

(a) State the process labeled: A
(b) Name the compound represented by B.
(c) Name the group of organisms labeled C.
(d) (i) Name the group of plants which promote process A
(ii) State the part of the plant where process A takes place..
(e) How would excess pesticides in the soil interfere with process A?

Answer Text:
a)- Nitrogen fixation by symbiotic bacteria e.g Rhizobium D
- Absorption
b)- Nitrates
c)- Denitrifying bacteria/ denitrifiers
d)i)- Leguminous plants (or legume) e.g beans, peas
ii)- Roots nodules
e)- By killing/ reduction of nitrogen fixing bacteria/ nitrogen fixing micro-organisms e.g Rhizobium.
- By destruction of leguminous plants.